﻿<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>自定义多级右键菜单</title>
<style type="text/css">
html,body{height:100%;overflow:hidden;}
body,div,ul,li{margin:0;padding:0;}
body{font:12px/1.5 \5fae\8f6f\96c5\9ed1;}
ul{list-style-type:none;}
#rightMenu{position:absolute;top:-9999px;left:-9999px;}
#rightMenu ul{float:left;border:1px solid #979797;background:#f1f1f1 url(http://js.fgm.cc/learn/lesson6/img/line.png) 24px 0 repeat-y;padding:2px;box-shadow:2px 2px 2px rgba(0,0,0,.6);}
#rightMenu ul li{float:left;clear:both;height:24px;cursor:pointer;line-height:24px;white-space:nowrap;padding:0 30px;}
#rightMenu ul li.sub{background-repeat:no-repeat;background-position:right 9px;background-image:url(http://js.fgm.cc/learn/lesson6/img/arrow.png);}
#rightMenu ul li.active{background-color:#f1f3f6;border-radius:3px;border:1px solid #aecff7;height:22px;line-height:22px;background-position:right -8px;padding:0 29px;}
#rightMenu ul ul{display:none;position:absolute;}
</style>
<script type="text/javascript">
    var getOffset = {
        top: function (obj) {
            return obj.offsetTop + (obj.offsetParent ? arguments.callee(obj.offsetParent) : 0)
        },
        left: function (obj) {
            return obj.offsetLeft + (obj.offsetParent ? arguments.callee(obj.offsetParent) : 0)
        }
    };
    window.onload = function () {
        var oMenu = document.getElementById("rightMenu");
        var aUl = oMenu.getElementsByTagName("ul");
        var aLi = oMenu.getElementsByTagName("li");
        var showTimer = hideTimer = null;
        var i = 0;
        var maxWidth = maxHeight = 0;
        var aDoc = [document.documentElement.offsetWidth, document.documentElement.offsetHeight];

        oMenu.style.display = "none";

        for (i = 0; i < aLi.length; i++) {
            //为含有子菜单的li加上箭头
            aLi[i].getElementsByTagName("ul")[0] && (aLi[i].className = "sub");

            //鼠标移入
            aLi[i].onmouseover = function () {
                var oThis = this;
                var oUl = oThis.getElementsByTagName("ul");

                //鼠标移入样式
                oThis.className += " active";

                //显示子菜单
                if (oUl[0]) {
                    clearTimeout(hideTimer);
                    showTimer = setTimeout(function () {
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                        oUl[0].style.display = "block";
                        oUl[0].style.top = oThis.offsetTop + "px";
                        oUl[0].style.left = oThis.offsetWidth + "px";
                        setWidth(oUl[0]);

                        //最大显示范围					
                        maxWidth = aDoc[0] - oUl[0].offsetWidth;
                        maxHeight = aDoc[1] - oUl[0].offsetHeight;

                        //防止溢出
                        maxWidth < getOffset.left(oUl[0]) && (oUl[0].style.left = -oUl[0].clientWidth + "px");
                        maxHeight < getOffset.top(oUl[0]) && (oUl[0].style.top = -oUl[0].clientHeight + oThis.offsetTop + oThis.clientHeight + "px")
                    }, 300);
                }
            };

            //鼠标移出	
            aLi[i].onmouseout = function () {
                var oThis = this;
                var oUl = oThis.getElementsByTagName("ul");
                //鼠标移出样式
                oThis.className = oThis.className.replace(/\s?active/, "");

                clearTimeout(showTimer);
                hideTimer = setTimeout(function () {
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                        oThis.parentNode.children[i].getElementsByTagName("ul")[0] &&
					(oThis.parentNode.children[i].getElementsByTagName("ul")[0].style.display = "none");
                    }
                }, 300);
            };
        }


        //自定义右键菜单
        document.oncontextmenu = function (event) {
            var event = event || window.event;
            oMenu.style.display = "block";
            oMenu.style.top = event.clientY + "px";
            oMenu.style.left = event.clientX + "px";
            setWidth(aUl[0]);

            //最大显示范围
            maxWidth = aDoc[0] - oMenu.offsetWidth;
            maxHeight = aDoc[1] - oMenu.offsetHeight;

            //防止菜单溢出
            oMenu.offsetTop > maxHeight && (oMenu.style.top = maxHeight + "px");
            oMenu.offsetLeft > maxWidth && (oMenu.style.left = maxWidth + "px");
            return false;
        };

        //点击隐藏菜单
        document.onclick = function () {
            oMenu.style.display = "none"
        };

        //取li中最大的宽度, 并赋给同级所有li	
        function setWidth(obj) {
            maxWidth = 0;
            for (i = 0; i < obj.children.length; i++) {
                var oLi = obj.children[i];
                var iWidth = oLi.clientWidth - parseInt(oLi.currentStyle ? oLi.currentStyle["paddingLeft"] : getComputedStyle(oLi, null)["paddingLeft"]) * 2
                if (iWidth > maxWidth) maxWidth = iWidth;
            }
            for (i = 0; i < obj.children.length; i++) obj.children[i].style.width = maxWidth + "px";
        }
    };
</script>
<script>
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            return t;
        },
        "importDataToTable": function (p_id) { },
        "exportDataToTable": function (p_id) { }
    }


</script>
</head>
<body>
<center>自定义右键菜单，请在页面点击右键查看效果。</center>
<div id="rightMenu">
    <ul>
        <li>
            <a relationalID='001' onclick="lib.openProperty(this)">属性</a>
        </li>
    </ul>
</div>
<div id="propertyEditorForTable"><table><tr><td>background color:</td><td><input id="propertyEditorForTable_A" type="text"/></td><td><input type="button" value="ok" /></td><td><a href="javascript:lib.close(this);return;">X</a></td></tr></table></div>
</body>
</html>